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ASoC: Intel: catpt: Simple sysfs attributes

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Add sysfs entries for displaying version of FW currently in use as well
as dumping full FW information including build and log-providers hashes.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200929141247.8058-10-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cezary Rojewski 2020-09-29 16:12:42 +02:00 committed by Mark Brown
parent 8ba1edb9c2
commit 8f80a834b9
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GPG Key ID: 24D68B725D5487D0
4 changed files with 74 additions and 0 deletions
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16
Documentation/ABI/testing/sysfs-bus-pci-devices-catpt Normal file
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@ -0,0 +1,16 @@
What: /sys/devices/pci0000:00/<dev>/fw_version
Date: September 2020
Contact: Cezary Rojewski <cezary.rojewski@intel.com>
Description:
Version of AudioDSP firmware ASoC catpt driver is
communicating with.
Format: %d.%d.%d.%d, type:major:minor:build.
What: /sys/devices/pci0000:00/<dev>/fw_info
Date: September 2020
Contact: Cezary Rojewski <cezary.rojewski@intel.com>
Description:
Detailed AudioDSP firmware build information including
build hash and log-providers hash. This information is
obtained during initial handshake with firmware.
Format: %s.

2
sound/soc/intel/catpt/core.h
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@ -15,6 +15,8 @@
struct catpt_dev;
extern const struct attribute_group *catpt_attr_groups[];
void catpt_sram_init(struct resource *sram, u32 start, u32 size);
void catpt_sram_free(struct resource *sram);
struct resource *

1
sound/soc/intel/catpt/device.c
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@ -342,6 +342,7 @@ static struct platform_driver catpt_acpi_driver = {
.name = "intel_catpt",
.acpi_match_table = catpt_ids,
.pm = &catpt_dev_pm,
.dev_groups = catpt_attr_groups,
},
};
module_platform_driver(catpt_acpi_driver);

55
sound/soc/intel/catpt/sysfs.c Normal file
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@ -0,0 +1,55 @@
// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2020 Intel Corporation. All rights reserved.
//
// Author: Cezary Rojewski <cezary.rojewski@intel.com>
//
#include <linux/pm_runtime.h>
#include "core.h"
static ssize_t fw_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct catpt_dev *cdev = dev_get_drvdata(dev);
struct catpt_fw_version version;
int ret;
pm_runtime_get_sync(cdev->dev);
ret = catpt_ipc_get_fw_version(cdev, &version);
pm_runtime_mark_last_busy(cdev->dev);
pm_runtime_put_autosuspend(cdev->dev);
if (ret)
return CATPT_IPC_ERROR(ret);
return sprintf(buf, "%d.%d.%d.%d\n", version.type, version.major,
version.minor, version.build);
}
static DEVICE_ATTR_RO(fw_version);
static ssize_t fw_info_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct catpt_dev *cdev = dev_get_drvdata(dev);
return sprintf(buf, "%s\n", cdev->ipc.config.fw_info);
}
static DEVICE_ATTR_RO(fw_info);
static struct attribute *catpt_attrs[] = {
&dev_attr_fw_version.attr,
&dev_attr_fw_info.attr,
NULL
};
static const struct attribute_group catpt_attr_group = {
.attrs = catpt_attrs,
};
const struct attribute_group *catpt_attr_groups[] = {
&catpt_attr_group,
NULL
};